1. Faculty of Agriculture; Kindai University; Nara Japan
2. International Rice Research Institute; Metro Manila Philippines
3. University of the Philippines Los Banos; Laguna Philippines
4. Pangasinan State University Santa Maria; Pangasinan Philippines
5. Graduate School of Bioagricultural Sciences; Nagoya University; Japan
6. Institute for Sustainable Agro-ecosystem Services; The University of Tokyo; Japan